D.c. Water And Sewer Authority Water System

MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: DC0000002
Type: Community water system
EPA Region: 03
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 632,323 		Contact Information
KIELY, CHARLES
KIELY, CHARLES
80 M Street, NE
WASHINGTON, DC 20003
[email protected]

This public water system services 1 municipality in 1 county.

Summary Results

A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.

Maximum Contaminant Levels Exceeded (by year):

2013   (0) 2014   (1) 2015   (0) 2016   (0) 2017   (0) 2018   (0)
chlorate

Contaminant Detailed Results

This a view of violations of maximum contaminant levels. Use the expanded view see result data for a drinking water contaminant, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-10-22 20 210 410
2014 2014-10-22 20 210 330
2014 2014-10-22 20 210 410
2014 2014-10-15 20 210 340
2014 2014-07-23 20 210 250
2014 2014-07-23 20 210 470
2014 2014-07-23 20 210 430
2014 2014-07-23 20 210 250
2014 2014-04-23 20 210 120
2014 2014-04-23 20 210 170
2014 2014-04-23 20 210 140
2014 2014-04-23 20 210 120
2014 2014-01-27 20 210 160
2014 2014-01-27 20 210 200
2014 2014-01-27 20 210 210
2014 2014-01-27 20 210 160

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Other Water Contaminants Tested

The following contaminants were tested and found to be within national EPA guidelines.

Contaminant MRLMinimum Reporting Level HRLHealth Risk Limit Avg Result
chromium 0.2 100 0.1056 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.2 100 0.32
2014 2014-10-22 0.2 100 0.26
2014 2014-10-22 0.2 100 0.36
2014 2014-10-15 0.2 100 0.31
2014 2014-07-23 0.2 100 < 0.2
2014 2014-07-23 0.2 100 < 0.2
2014 2014-07-23 0.2 100 0.2
2014 2014-07-23 0.2 100 0.24
2014 2014-04-23 0.2 100 < 0.2
2014 2014-04-23 0.2 100 < 0.2
2014 2014-04-23 0.2 100 < 0.2
2014 2014-04-23 0.2 100 < 0.2
2014 2014-01-27 0.2 100 < 0.2
2014 2014-01-27 0.2 100 < 0.2
2014 2014-01-27 0.2 100 < 0.2
2014 2014-01-27 0.2 100 < 0.2
[+] Expand Test Data
chromium-6 0.03 0 0.0863 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.03 0 0.079
2014 2014-10-22 0.03 0 0.063
2014 2014-10-22 0.03 0 0.077
2014 2014-10-15 0.03 0 0.076
2014 2014-07-23 0.03 0 0.1
2014 2014-07-23 0.03 0 0.1
2014 2014-07-23 0.03 0 0.098
2014 2014-07-23 0.03 0 0.1
2014 2014-04-23 0.03 0 0.077
2014 2014-04-23 0.03 0 0.12
2014 2014-04-23 0.03 0 0.092
2014 2014-04-23 0.03 0 0.075
2014 2014-01-27 0.03 0 0.074
2014 2014-01-27 0.03 0 0.077
2014 2014-01-27 0.03 0 0.091
2014 2014-01-27 0.03 0 0.082
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 1 70 < 1
2014 2014-10-22 1 70 < 1
2014 2014-10-22 1 70 < 1
2014 2014-10-15 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-07-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-01-27 1 70 < 1
2014 2014-01-27 1 70 < 1
2014 2014-01-27 1 70 < 1
2014 2014-01-27 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 0.2813 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 1 40 1.2
2014 2014-10-22 1 40 1
2014 2014-10-22 1 40 1.2
2014 2014-10-15 1 40 1.1
2014 2014-07-23 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-07-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-01-27 1 40 < 1
2014 2014-01-27 1 40 < 1
2014 2014-01-27 1 40 < 1
2014 2014-01-27 1 40 < 1
[+] Expand Test Data
strontium 0.3 1500 164.625 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.3 1500 260
2014 2014-10-22 0.3 1500 220
2014 2014-10-22 0.3 1500 260
2014 2014-10-15 0.3 1500 230
2014 2014-07-23 0.3 1500 190
2014 2014-07-23 0.3 1500 210
2014 2014-07-23 0.3 1500 24
2014 2014-07-23 0.3 1500 200
2014 2014-04-23 0.3 1500 120
2014 2014-04-23 0.3 1500 120
2014 2014-04-23 0.3 1500 130
2014 2014-04-23 0.3 1500 120
2014 2014-01-27 0.3 1500 120
2014 2014-01-27 0.3 1500 140
2014 2014-01-27 0.3 1500 160
2014 2014-01-27 0.3 1500 130
[+] Expand Test Data
vanadium 0.2 21 0.3531 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.2 21 0.39
2014 2014-10-22 0.2 21 0.6
2014 2014-10-22 0.2 21 0.4
2014 2014-10-15 0.2 21 0.57
2014 2014-07-23 0.2 21 0.55
2014 2014-07-23 0.2 21 0.85
2014 2014-07-23 0.2 21 1.3
2014 2014-07-23 0.2 21 0.57
2014 2014-04-23 0.2 21 < 0.2
2014 2014-04-23 0.2 21 0.2
2014 2014-04-23 0.2 21 0.22
2014 2014-04-23 0.2 21 < 0.2
2014 2014-01-27 0.2 21 < 0.2
2014 2014-01-27 0.2 21 < 0.2
2014 2014-01-27 0.2 21 < 0.2
2014 2014-01-27 0.2 21 < 0.2
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.03 6.14 < 0.03
2014 2014-10-22 0.03 6.14 < 0.03
2014 2014-07-23 0.03 6.14 < 0.03
2014 2014-07-23 0.03 6.14 < 0.03
2014 2014-04-23 0.03 6.14 < 0.03
2014 2014-04-23 0.03 6.14 < 0.03
2014 2014-01-27 0.03 6.14 < 0.03
2014 2014-01-27 0.03 6.14 < 0.03
[+] Expand Test Data
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.03 0.0004 < 0.03
2014 2014-10-22 0.03 0.0004 < 0.03
2014 2014-07-23 0.03 0.0004 < 0.03
2014 2014-07-23 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-01-27 0.03 0.0004 < 0.03
2014 2014-01-27 0.03 0.0004 < 0.03
[+] Expand Test Data
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.1 0.0103 < 0.1
2014 2014-10-22 0.1 0.0103 < 0.1
2014 2014-07-23 0.1 0.0103 < 0.1
2014 2014-07-23 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-01-27 0.1 0.0103 < 0.1
2014 2014-01-27 0.1 0.0103 < 0.1
[+] Expand Test Data
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.07 0.35 < 0.07
2014 2014-10-22 0.07 0.35 < 0.07
2014 2014-07-23 0.07 0.35 < 0.07
2014 2014-07-23 0.07 0.35 < 0.07
2014 2014-04-23 0.07 0.35 < 0.07
2014 2014-04-23 0.07 0.35 < 0.07
2014 2014-01-27 0.07 0.35 < 0.07
2014 2014-01-27 0.07 0.35 < 0.07
[+] Expand Test Data
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.0009 0.035 < 0.0009
2014 2014-10-22 0.0009 0.035 < 0.0009
2014 2014-07-23 0.0009 0.035 < 0.0009
2014 2014-07-23 0.0009 0.035 < 0.0009
2014 2014-04-23 0.0009 0.035 < 0.0009
2014 2014-04-23 0.0009 0.035 < 0.0009
2014 2014-01-27 0.0009 0.035 < 0.0009
2014 2014-01-27 0.0009 0.035 < 0.0009
[+] Expand Test Data
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.0004 0.0009 < 0.0004
2014 2014-10-22 0.0004 0.0009 < 0.0004
2014 2014-07-23 0.0004 0.0009 < 0.0004
2014 2014-07-23 0.0004 0.0009 < 0.0004
2014 2014-04-23 0.0004 0.0009 < 0.0004
2014 2014-04-23 0.0004 0.0009 < 0.0004
2014 2014-01-27 0.0004 0.0009 < 0.0004
2014 2014-01-27 0.0004 0.0009 < 0.0004
[+] Expand Test Data
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.0003 0 < 0.0003
2014 2014-10-22 0.0003 0 < 0.0003
2014 2014-07-23 0.0003 0 < 0.0003
2014 2014-07-23 0.0003 0 < 0.0003
2014 2014-04-23 0.0003 0 < 0.0003
2014 2014-04-23 0.0003 0 < 0.0003
2014 2014-01-27 0.0003 0 < 0.0003
2014 2014-01-27 0.0003 0 < 0.0003
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.2 140 < 0.2
2014 2014-10-22 0.2 140 < 0.2
2014 2014-07-23 0.2 140 < 0.2
2014 2014-07-23 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-01-27 0.2 140 < 0.2
2014 2014-01-27 0.2 140 < 0.2
[+] Expand Test Data
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.2 2.69 < 0.2
2014 2014-10-22 0.2 2.69 < 0.2
2014 2014-07-23 0.2 2.69 < 0.2
2014 2014-07-23 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-01-27 0.2 2.69 < 0.2
2014 2014-01-27 0.2 2.69 < 0.2
[+] Expand Test Data
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.004 0.35 < 0.004
2014 2014-10-22 0.004 0.35 < 0.004
2014 2014-07-23 0.004 0.35 < 0.004
2014 2014-07-23 0.004 0.35 < 0.004
2014 2014-04-23 0.004 0.35 < 0.004
2014 2014-04-23 0.004 0.35 < 0.004
2014 2014-01-27 0.004 0.35 < 0.004
2014 2014-01-27 0.004 0.35 < 0.004
[+] Expand Test Data
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.0008 0.35 < 0.0008
2014 2014-10-22 0.0008 0.35 < 0.0008
2014 2014-07-23 0.0008 0.35 < 0.0008
2014 2014-07-23 0.0008 0.35 < 0.0008
2014 2014-04-23 0.0008 0.35 < 0.0008
2014 2014-04-23 0.0008 0.35 < 0.0008
2014 2014-01-27 0.0008 0.35 < 0.0008
2014 2014-01-27 0.0008 0.35 < 0.0008
[+] Expand Test Data
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.002 0.35 < 0.002
2014 2014-10-22 0.002 0.35 < 0.002
2014 2014-07-23 0.002 0.35 < 0.002
2014 2014-07-23 0.002 0.35 < 0.002
2014 2014-04-23 0.002 0.35 < 0.002
2014 2014-04-23 0.002 0.35 < 0.002
2014 2014-01-27 0.002 0.35 < 0.002
2014 2014-01-27 0.002 0.35 < 0.002
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.06 90 < 0.06
2014 2014-10-22 0.06 90 < 0.06
2014 2014-07-23 0.06 90 < 0.06
2014 2014-07-23 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-01-27 0.06 90 < 0.06
2014 2014-01-27 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.08 0 < 0.08
2014 2014-10-22 0.08 0 < 0.08
2014 2014-07-23 0.08 0 < 0.08
2014 2014-07-23 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-01-27 0.08 0 < 0.08
2014 2014-01-27 0.08 0 < 0.08
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.09 0 < 0.09
2014 2014-10-22 0.09 0 < 0.09
2014 2014-07-23 0.09 0 < 0.09
2014 2014-07-23 0.09 0 < 0.09
2014 2014-04-23 0.09 0 < 0.09
2014 2014-04-23 0.09 0 < 0.09
2014 2014-01-27 0.09 0 < 0.09
2014 2014-01-27 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.01 0 < 0.01
2014 2014-10-22 0.01 0 < 0.01
2014 2014-07-23 0.01 0 < 0.01
2014 2014-07-23 0.01 0 < 0.01
2014 2014-04-23 0.01 0 < 0.01
2014 2014-04-23 0.01 0 < 0.01
2014 2014-01-27 0.01 0 < 0.01
2014 2014-01-27 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.03 0 < 0.03
2014 2014-10-22 0.03 0 < 0.03
2014 2014-07-23 0.03 0 < 0.03
2014 2014-07-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-01-27 0.03 0 < 0.03
2014 2014-01-27 0.03 0 < 0.03
[+] Expand Test Data
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.02 0 < 0.02
2014 2014-10-22 0.02 0 < 0.02
2014 2014-07-23 0.02 0 < 0.02
2014 2014-07-23 0.02 0 < 0.02
2014 2014-04-23 0.02 0 < 0.02
2014 2014-04-23 0.02 0 < 0.02
2014 2014-01-27 0.02 0 < 0.02
2014 2014-01-27 0.02 0 < 0.02
[+] Expand Test Data
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.02 0.07 < 0.02
2014 2014-10-22 0.02 0.07 < 0.02
2014 2014-07-23 0.02 0.07 < 0.02
2014 2014-07-23 0.02 0.07 < 0.02
2014 2014-04-23 0.02 0.07 < 0.02
2014 2014-04-23 0.02 0.07 < 0.02
2014 2014-01-27 0.02 0.07 < 0.02
2014 2014-01-27 0.02 0.07 < 0.02
[+] Expand Test Data
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.04 0.07 < 0.04
2014 2014-10-22 0.04 0.07 < 0.04
2014 2014-07-23 0.04 0.07 < 0.04
2014 2014-07-23 0.04 0.07 < 0.04
2014 2014-04-23 0.04 0.07 < 0.04
2014 2014-04-23 0.04 0.07 < 0.04
2014 2014-01-27 0.04 0.07 < 0.04
2014 2014-01-27 0.04 0.07 < 0.04
[+] Expand Test Data
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-10-22 0.0001 0 < 0.0001
2014 2014-10-22 0.0001 0 < 0.0001
2014 2014-07-23 0.0001 0 < 0.0001
2014 2014-07-23 0.0001 0 < 0.0001
2014 2014-04-23 0.0001 0 < 0.0001
2014 2014-04-23 0.0001 0 < 0.0001
2014 2014-01-27 0.0001 0 < 0.0001
2014 2014-01-27 0.0001 0 < 0.0001
[+] Expand Test Data

Lead and Copper Data

Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply level. Lead and copper can be — and often are — deposited in drinking water in between the water facility and your tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
DC148 lead 2018-01-01 2018-06-30 0.0027mg/L
DC146 lead 2017-07-01 2017-12-31 0.0034mg/L
DC140 lead 2017-01-01 2017-06-30 0.003mg/L
DC134 lead 2016-07-01 2016-12-31 0.0034mg/L
DC126 lead 2016-01-01 2016-06-30 0.002mg/L
DC123 lead 2015-07-01 2015-12-31 0.004mg/L
DC111 lead 2015-01-01 2015-06-30 0.002mg/L
DC105 lead 2014-07-01 2014-12-31 0.004mg/L
DC103 lead 2014-01-01 2014-06-30 0.002mg/L
DC101 lead 2013-07-01 2013-12-31 0.0055mg/L
DC92 lead 2013-01-01 2013-06-30 0.004mg/L
DC90 lead 2012-07-01 2012-12-31 0.004mg/L
DC84 lead 2012-01-01 2012-06-30 0.003mg/L
DC82 lead 2011-07-01 2011-12-31 0.005mg/L
DC81 lead 2011-01-01 2011-06-30 0.005mg/L
DC79 lead 2010-07-01 2010-12-31 0.009mg/L
DC61 lead 2010-01-01 2010-06-30 0.007mg/L
DC77 lead 2010-01-01 2010-06-30 0.007mg/L
DC53 lead 2009-07-01 2009-12-31 0.007mg/L
DC57 lead 2009-01-01 2009-06-30 0.006mg/L
DC55 lead 2008-07-01 2008-12-31 0.008mg/L
DC47 lead 2008-01-01 2008-06-30 0.007mg/L

Violations

Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2006-01-01 - 2006-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chloramine Returned to Compliance
2004-10-01 - 2004-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2004-10-01 - 2004-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2004-09-01 - 2004-09-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2003-01-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
- N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
2003-07-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
- N/A Miscellaneous Notification, Public - Returned to Compliance
- N/A Miscellaneous Notification, Public - Returned to Compliance
- N/A Miscellaneous Notification, Public - Returned to Compliance
2001-07-01 - N/A Lead and Copper Rule Lead Service Line Replacement (LSLR) Lead and Copper Rule Returned to Compliance
2002-10-01 - N/A Lead and Copper Rule Lead Service Line Replacement (LSLR) Lead and Copper Rule Returned to Compliance
2004-10-01 - N/A Lead and Copper Rule Lead Service Line Replacement (LSLR) Lead and Copper Rule Returned to Compliance
2001-07-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
2002-10-01 - N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance
2005-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Complete Failure to Report Consumer Confidence Rule Returned to Compliance
2003-10-01 - N/A Consumer Confidence Rule Consumer Confidence Report Inadequate Reporting Consumer Confidence Rule Returned to Compliance
2001-07-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
2000-07-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Acute (TCR) Coliform (TCR) Returned to Compliance
- N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
- N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Acute (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Acute (TCR) Coliform (TCR) Returned to Compliance

Local Water Testing

Find a lab in your area so you can get your tap or well water tested. This list contains both governmental and private labs, all of which are EPA-certified for drinking water testing.

Lab Location Zip Code
Envirocorp Inc. Harrington, DE 19952

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about D.c. Water And Sewer Authority (DC0000002).

What My Water Data Means

Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.

Sources

The origin of MyTapWater.org's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?

The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.